JP3770381B2 - Method for forming base support - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to the formation how the base support for supporting the structure.
[0002]
[Prior art]
The base support as described above is formed on a formation target surface such as a floor surface by filling a mold for forming the base support with a curing fluid for forming the base support, and the formed base support is formed. A structure such as an article storage shelf is supported on the body and used for an automatic warehouse or the like.
[0003]
As a method for forming the base support, there are conventionally two types of methods, one of which is as shown in FIG. 10, in which a level bolt 9a is attached to an anchor bolt 7a protruding upward from the formation target surface 1a. The level of the upper surface position of the base support is leveled, and the periphery of the level bolt is surrounded by a mold 8a for forming the base support, and self-leveling material or mortar is placed in the mold 8a up to the level bolt mounting position. This is a method of filling and forming a curing fluid 10a for forming a base support such as the following (hereinafter referred to as conventional method 1).
In another method, as shown in FIG. 11, the fixing nut 12a is screwed into the anchor bolt in a state where the plate-shaped reinforcing plate 11a is passed through the anchor bolt 7b protruding upward from the formation target surface 1b. The plate 11a is fixed, the level of the upper surface position of the base support is leveled with the reinforcing plate 11a, and the periphery of the reinforcing plate 11a is surrounded by the mold 8b for forming the base support, and within the mold 8b. This is a method in which a hardening fluid 10b for forming a base support such as mortar is poured from the periphery of the reinforcing plate 11a and filled with the hardening fluid for forming the base support up to the mounting position of the reinforcing plate (hereinafter, referred to as the following). Conventional method 2).
[0004]
Also, there are two types of base supports, one of which is an anchor bolt that is formed by the conventional method 1 and protrudes upward from the formation target surface 1a as shown in FIG. A level bolt 9a is attached to 7a, and a mold support 8a for forming a base support is disposed so as to surround the level bolt 9a. In the mold 8a, a self-leveling material or the like is attached to the level bolt mounting position. It is filled with a hardening fluid 10a for forming a base support such as mortar (hereinafter referred to as conventional configuration 1).
The other is formed by the above-mentioned conventional method 2 and, as shown in FIG. 11 (B), for fixing in a state in which the flat reinforcing plate 11a is passed through the anchor bolt 7b protruding upward from the formation target surface 1b. The nut 12a is screwed to the anchor bolt 7b to fix the reinforcing plate 11a, and a base support forming mold 8b is disposed so as to surround the reinforcing plate 11a. The mounting position of the plate 11 is filled with a hardening fluid 10b for forming a base support such as mortar (hereinafter referred to as conventional configuration 2).
[0005]
And as a conventional seismic isolation structure, the base isolation device of the conventional structure 1 formed by the conventional method 1 or the base support of the conventional structure 2 formed by the conventional method 2 is provided with the seismic isolation device. The seismic isolation floor as the main body of the structure is supported.
[0006]
[Problems to be solved by the invention]
Since the base support as described above supports the structure on the top, accuracy such as the level and level of the upper surface of the base support is required, and a strong strength is also required. It is what.
[0007]
However, in the conventional method 1, since only the hardening fluid for forming the base support is filled up to the level bolt mounting position in the mold for forming the base support, the level of the upper surface of the base support Since the accuracy such as the level depends on only the curing action of the curing fluid, the level and the level of the upper surface of the base support may be distorted due to the shrinkage or expansion of the curing fluid.
Even in the base support of the conventional configuration 1, since the hardening fluid for forming the base support is filled in the mold for forming the base support up to the level bolt mounting position, the shrinkage of the hardening fluid There is a risk that the level and level of the upper surface of the base support may be distorted due to or expansion.
[0008]
Incidentally, in the case of the conventional method 1 or the conventional configuration 1, it is possible to improve the level accuracy of the upper surface of the base support by using a self-leveling material as the hardening fluid for forming the support. The leveling material is expensive, resulting in a significant cost increase.
[0009]
Further, in the conventional method 2, after leveling with the reinforcing plate, the hardening fluid is poured from the periphery of the reinforcing plate, and the base support is provided in the form for forming the base support up to the mounting position of the reinforcing plate. Since the forming hardening fluid is filled, it is difficult for the hardening fluid to flow into the central portion of the reinforcing plate, and air tends to remain between the central portion of the reinforcing plate and the hardening fluid, and there is a space in that portion. This may cause a problem in strength.
Even in the base support of the conventional structure 2, the hardening fluid for forming the base support is filled in the form for forming the base support up to the mounting position of the reinforcing plate. It is difficult to fill the hardened fluid up to the mounting position of the plate, air tends to remain between the central portion of the reinforcing plate and the hardened fluid, and a space is created in that portion, which may cause a problem in strength. There is.
[0010]
The present invention has been made in view of the above points, and its object is that the accuracy of such levels and levelness of the upper surface may provide a form how the strength to strong base support .
[0011]
[Means for Solving the Problems]
In order to achieve this object, according to the invention described in claim 1, in the method of forming a base support for supporting a structure,
Curing for forming the base support up to a position above the mounting position of the level nut screwed into the anchor bolt in the form for forming the base support surrounding the periphery of the anchor bolt protruding upward from the surface to be formed Fill the fluid, press the hardening fluid to the level nut mounting position in a state where the anchor bolt is penetrated by the flat reinforcing plate from the upper surface side, and screw the fixing nut to the anchor bolt. The reinforcing plate is fixed.
[0012]
That is, instead of pouring the hardening fluid for forming the base support from the periphery of the reinforcing plate, first, the hardening fluid is poured into the form for forming the base support from the opened upper side. Hardening fluid can be filled up above the level nut mounting position as a whole, and to the level nut mounting position in a state where anchor bolts are passed through the reinforcing plate from the upper surface side with respect to the filled hardening fluid. In the pressed state, the fixing nut can be screwed onto the anchor bolt to fix the reinforcing plate.
Accordingly, it is possible to attach the reinforcing plate in a state where the hardening fluid is filled up above the level nut attaching position throughout the mold, so that air remains between the reinforcing plate and the hardening fluid. Furthermore, since the hardened fluid is fixed in a state pressed against the mounting position of the level nut with a reinforcing plate against the hardened fluid, the accuracy such as the level and level of the upper surface of the base support is It is possible to prevent the dependence on only the curing action of the curing fluid.
[0013]
In summary, there is no space formed between the reinforcing plate and the hardening fluid, and there is no damage in terms of strength. As a result, it is possible to provide a method for forming a base support that has high accuracy such as level and level of the upper surface and high strength.
[0014]
According to invention of Claim 2, in the formation method of the base support body of Claim 1 ,
At the air vents provided in the prior SL reinforcing plate, Ru passed air present between the cured fluid upward.
[0015]
That is, the reinforcing plate is fixed in the state in which the hardening fluid is pressed by the reinforcing plate from the upper surface side of the hardening fluid for forming the base supporting member filled in the mold for forming the base supporting member, and provided on the reinforcing plate. It is possible to allow the air existing between the hardened fluid to pass upward through the air holes formed.
Therefore, by fixing the hardened fluid in a pressed state with the reinforcing plate, it is possible to prevent the accuracy such as the level and level of the upper surface of the base support from being dependent only on the hardening action of the hardened fluid. At the same time, it is possible to prevent air from remaining between the reinforcing plate and the hardening fluid by the action of the air holes provided in the reinforcing plate.
[0016]
In summary, there is no space formed between the reinforcing plate and the hardening fluid, and there is no damage in terms of strength. As a result, it is possible to provide a method for forming a base support that has high accuracy such as level and level of the upper surface and high strength.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
It described seismic isolation structure adapted to form how such base support present invention.
As shown in FIG. 1 and FIG. 2, the seismic isolation structure has a plurality of base supports 2 formed on the ground 1 as a formation target surface, and the plurality of base supports 2 formed thereon. Each is provided with a seismic isolation device 3 so that the structure body M is supported on the base support 2 via the seismic isolation device 3.
The structure body M includes a base isolation floor 4 formed of a steel frame and an article storage shelf 5 installed on the base isolation floor 4, and such a base isolation structure is used for an automatic warehouse or the like. Has been.
[0020]
The article storage shelf 5 is configured to store a plurality of various articles side by side in a state of being placed on a pallet, and is arranged in parallel with a front end facing each other. A plurality of pairs of article storage shelves 5 are installed in parallel, with the article storage shelves 5 facing each other as one pair.
Stacker cranes 6 are respectively provided on the seismic isolation floor 4 on the front side of each pair of article storage shelves 5 so as to be able to travel along the front entrance. And a carry-out conveyor is provided.
Then, the articles carried in by the carry-in conveyor are stored in the article storage rack 5 by the stacker crane 6 together with the pallets, and conversely, the articles stored in the article storage rack 5 are also transferred to the carry-out conveyor by the stacker crane 6 together with the pallets. It is comprised so that it can carry out and can carry out by the carrying-out conveyor.
[0021]
As shown in FIGS. 3 and 5, the base support 2 is disposed such that the base frame 8 for forming the base support has a rectangular shape in a plan view, and the base support 2 is placed in the mold 8. A flat reinforcing plate 11 having chamfered corners is provided on the upper surface of the non-shrinking mortar 10 as a forming hardening fluid, and a seismic isolation is provided on the reinforcing plate 11. The seismic isolation floor 4 is configured to be supported via the device 3.
[0022]
In other words, a base frame forming mold 8 is disposed so as to surround the four anchor bolts 7 protruding upward from the ground 1, and the anchor bolt 7 is screwed into the mold 8. The non-shrink mortar 10 is filled up to the position where the combined level nut 9 is attached, and a reinforcing plate 11 is provided on the upper surface thereof so as to penetrate the anchor bolt 7.
The reinforcing plate 11 is fixed by screwing the fixing nut 12 to the anchor bolt 7 in a state in which the non-shrinking mortar 10 is pressed to the mounting position of the level nut 9, and the non-shrinking mortar 10 is fixed to the reinforcing plate 11. Air holes 13 are provided to allow the air existing between them to pass upward.
The air holes 13 are provided between the side end portion and the center of the reinforcing plate 11 at intervals in the circumferential direction of the reinforcing plate 11, and four locations corresponding to the four corners of the reinforcing plate 11 and the middle of the four locations. It is provided in a total of eight places corresponding to four positions.
[0023]
In this way, the base support 2 is a reinforcing plate in a state in which the non-shrinking mortar 10 is pressed by the reinforcing plate 11 from the upper surface side of the non-shrinking mortar 10 filled in the mold 8 for forming the base support. 11 and fixing the non-shrinking mortar 10 with the air holes 13 provided in the reinforcing plate 11 while improving the accuracy of the level and level of the upper surface of the base support 2 by the action of the reinforcing plate 11. The air present between the reinforcing plate 11 and the non-shrinkable mortar 10 is made strong by passing air existing between the reinforcing plate 11 and the non-shrinkable mortar 10.
[0024]
A method for forming the base support 2 will be described.
A base support forming mold 8 surrounding the anchor bolt 7 projecting upward from the ground 1 is filled with a non-shrink mortar 10 up to a position higher than the mounting position of the level nut 9 screwed into the anchor bolt 7. Then, the non-shrink mortar 10 is pressed to the mounting position of the level nut 9 in a state where the anchor bolt 7 is penetrated by the reinforcing plate 11 from the upper surface side, and the fixing nut 12 is screwed to the anchor bolt 7 to reinforce the reinforcing plate 11. Is fixed.
[0025]
That is, as shown in FIG. 4, first, a base support forming mold 8 is installed so as to surround the four anchor bolts 7. 10 is poured, and the non-shrink mortar 10 is filled over the entire inside of the mold 8 to a position above the position where the level nut 9 is attached. In addition, it is preferable to fill the non-shrink mortar 10 so that the center portion of the mold 8 is high.
Then, the anchor bolt 7 is passed through the through hole 14 formed in the reinforcing plate 11 with respect to the filled non-shrink mortar 10 and is pressed from the upper surface side to the mounting position of the level nut 9 with the reinforcing plate 11. In the pressed state, the fixing nut 12 is screwed onto the anchor bolt 7 to fix the reinforcing plate 11 and is cured.
[0026]
In this manner, the reinforcing plate 11 is attached in a state in which the non-shrink mortar 10 is filled up to the upper side of the mounting position of the level nut 9 throughout the mold 8, and air is provided between the reinforcing plate and the hardening fluid. In addition, the base support 2 is fixed by the action of the reinforcing plate 11 by fixing the level of the non-shrinkable mortar 10 filled with the leveling plate 9 with the reinforcing plate 11. The accuracy of the upper surface level and levelness is improved.
[0027]
A rectangular seismic isolation floor 4 is supported on the base support 2 via a seismic isolation device 3, and the support structure of the base isolation floor 4 will be described.
As shown in FIG. 6, the ground 1 has 17 rows arranged in the horizontal direction in the drawing as one row, and five rows are arranged at intervals in the vertical direction in the drawing, and is indicated by A in FIG. The base support 2 is formed at a total of 85 positions, and the seismic isolation device 3 is disposed on all of the base support 2, and the plan view through the plurality of seismic isolation devices 3 is rectangular. The seismic floor 4 is supported.
Each of the seismic isolation devices 3 is configured to support the seismic isolation floor 4 so as to be movable in the horizontal direction and to return to the set position.
6 shows the support position of the base isolation floor 4 supported by the base support 2 via the base isolation device 3, and the damping oil damper 19 and the hydraulic jack 20 described later on the lower surface of the base isolation floor 4. The arrangement position is indicated.
[0028]
The seismic isolation device 3 will be described. Since each of the seismic isolation devices 3 has the same configuration, one of them will be described.
As shown in FIG. 7, the seismic isolation device 3 is connected to the lower part of the base isolation floor 4, and a ball support portion 15 that moves in the horizontal direction together with the base isolation floor 4 and an adhesive on the base support 2. And a return guide portion 16 for returning the seismic isolation floor 4 to the set position.
The lower end of the ball support portion 15 is configured to hold the large ball 15b in a freely rolling manner via a large number of small balls 15a, and the return guide portion 16 is circular in plan view and is viewed in a longitudinal section. In FIG. 2, the inclined guide surface 16a is located lower in the center portion and in the upper portion on the peripheral side.
[0029]
Thus, the seismic isolation device 3 supports the seismic isolation floor 4 movably in the horizontal direction by rolling of the large ball 15b in the ball support portion 15 so as not to follow the shaking in the horizontal direction. At the same time, the seismic isolation floor 4 is moved back to the set position (the center position of the inclined guide surface 16a) by its own weight by the action of the inclined guide surface 16a.
[0030]
In addition to the seismic isolation device 3, as shown in FIG. 8, a damping oil damper 19 is provided to attenuate the horizontal shaking so that the seismic isolation floor 4 does not follow the horizontal shaking.
The damping oil damper 19 is provided by an oil damper base isolation bracket 17 provided on the lower surface side of the base isolation floor 4 and an oil damper base bracket 18 provided on the ground 1. 6 at each position indicated by B.
[0031]
Further, as shown in FIG. 9, a hydraulic jack 20 is provided as a forced return means for forcibly returning the seismic isolation floor 4 to the setting position when the seismic isolation floor 4 moves to a position deviated from the setting position. It has been.
The hydraulic jack 20 is not usually installed, and only when the seismic isolation floor 4 has moved to a position deviated from the set position due to some abnormality, it is indicated by C1 and C2 in FIG. The seismic isolation floor 4 is moved in the horizontal direction by manual operation, and the seismic isolation floor 4 is forcibly returned to the set position.
[0032]
In addition, the hydraulic jack 20 installed at the position indicated by C1 in FIG. 6 is configured to move the base isolation floor 4 in the longitudinal direction of the base isolation floor 4, and is installed at the position indicated by C2 in FIG. The hydraulic jack 20 is configured to move the base isolation floor 4 in the short direction of the base isolation floor 4.
In each of the positions indicated by C1 and C2 in FIG. 6, a seismic isolation floor side bracket 21 for a hydraulic jack is provided on the lower surface side of the seismic isolation floor 4, and both lateral sides of the seismic isolation floor side bracket 21 for the hydraulic jack are provided. The hydraulic jack foundation side bracket 22 is provided on the ground 1.
Then, when some abnormality occurs and the seismic isolation floor 4 remains moved to a position deviated from the set position, the hydraulic jack seismic isolation floor side is located at each of the positions indicated by C1 and C2 in FIG. One hydraulic jack 20 is attached by the bracket 21 and the base bracket 22 for hydraulic jack, and a total of two hydraulic jacks 20 are attached.
[0033]
Incidentally, at the lower end of the hydraulic jack seismic isolation floor side bracket 21, a rod-like position adjusting body 21 a is extended so as to come into contact with the acrylic plate 23 bonded on the ground 1. A grid-like line is written on the substrate, and the hydraulic jack 20 is manually operated so that the contact position between the line and the position adjusting body 21a is moved to the set position.
[0034]
In this way, after the occurrence of an earthquake due to some abnormality, the seismic isolation floor 4 moves to a position deviated from the set position, and even if the seismic isolation floor 4 stops, the seismic isolation floor 4 is forced to the set position by the hydraulic jack 20. Even if an abnormal situation occurs in which the seismic isolation floor 4 moves to a position deviated from the set position and stops, the hydraulic jack 20 can easily return to the normal state from the abnormal situation. I am trying to recover.
[0035]
[Another embodiment]
(1) In the said embodiment, although the seismic isolation apparatus 3 showed the example comprised so that the seismic isolation floor 4 might be supported by the rolling support using rolling of ball | bowl 15a, 15b, For example, even a structure that supports the seismic isolation floor 4 with laminated rubber or a sliding support is applicable, and various types of seismic isolation apparatus 3 can be applied.
[0036]
(2) In the above embodiment, an example in which the hydraulic jack 20 is provided as the forced return means has been described. However, the forced return means is not limited to the hydraulic jack 20, and other types can be applied. It is also possible to carry out without providing the forced return means.
[0037]
(3) In the above embodiments, adapted to form how such base support present invention, on the base support 2, the seismic isolation structure MenShinyuka 4 is supported via a vibration isolating apparatus 3 the exemplified, but the formation how such base support present invention, it is also possible to carry to adapt to structures other than seismic isolation structure.
[0038]
(4) In the case of adapting the form how such base support present invention in the above embodiment, the reinforcing plate 11 can be implemented without providing the air hole 13.
[Brief description of the drawings]
FIG. 1 is a side view showing an outline of a base-isolated structure. FIG. 2 is a plan view showing an outline of the base-isolated structure. FIG. 3 is a side view and a plan view showing a base support. Fig. 5 is a perspective view showing the support structure of the seismic isolation floor. Fig. 6 is a diagram showing the location of the seismic isolation device in the base isolation structure. FIG. 8 is a side view showing a damping oil damper. FIG. 9 is a side view showing a hydraulic jack. FIG. 10 is a view showing a method for forming a base support and a conventional example of the base support. Diagram showing conventional example of method and base support 【Explanation of symbols】
DESCRIPTION OF SYMBOLS 1 Formation object surface 2 Base support body 3 Seismic isolation device 7 Anchor bolt 8 Formwork 9 for base support formation Level nut 10 Hardening fluid 11 for base support formation 11 Reinforcement plate 12 Nut 13 for fixing Air hole 20 Force return means M structure body

Claims (2)

A method for forming a base support for supporting a structure,
Hardening for forming the base support up to a position above the mounting position of the level nut screwed into the anchor bolt in the form for forming the base support surrounding the anchor bolt projecting upward from the surface to be formed Fill the fluid, press the hardened fluid to the level nut mounting position in a state where the anchor bolt penetrates from the upper surface side with a flat reinforcing plate, and screw the fixing nut to the anchor bolt. A method for forming a base support for fixing the reinforcing plate. The method for forming a base support according to claim 1 , wherein air existing between the hardened fluid is passed upward through a vent hole provided in the reinforcing plate.

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